TEST
YOUR USB

JMicron (ExtHD)

Tech 1TB

▲ 500 ▼

Release date ≈ Q1 2017.

Average Bench: 43.8% (32nd of 639)

Based on 97 user benchmarks.  Device: VID 152d PID 0578 Model: JMicron Tech
Poor: 9%Average: 43.8% Great: 174%

Below average average bench

The JMicron Tech 1TB averaged 56.2% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 32.5MB/s
Avg. 4K-64Thread Mixed IO Speed 26MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the JMicron Tech 1TB is 164%. This is a particularly wide range which indicates that the JMicron Tech 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.19MB/s
Avg. Sequential Read Speed 93.8MB/s
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Average Bench

(Based on 97 samples)
Rank 3243.8%
Min Avg Max
13.8 Read 93.8 279
2.66 Write 83.1 253
5.12 Mixed 57.6 258
5.19 SusWrite 84.9 256
106% 79.8 MB/s
Min Avg Max
0.09 4K Read 2.19 19.1
0.3 4K Write 3.6 24
0.05 4K Mixed 2.26 21.3
207% 2.68 MB/s
Min Avg Max
17 DQ Read 22.9 25.9
21.3 DQ Write 32.5 44.6
18.6 DQ Mixed 26 32
2,075% 27.1 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
94GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 365 366 366 371 382 383 MB/s
218% Outstanding
Read 371
Write 381
Mixed 352
SusWrite 372
506% 369 MB/s
4K Read 21.8
4K Write 25.5
4K Mixed 19.1
1,598% 22.1 MB/s
DQ Read 24.8
DQ Write 26.1
DQ Mixed 25.7
1,854% 25.5 MB/s
641GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 236 244 253 285 265 256 MB/s
179% Outstanding
Read 316
Write 322
Mixed 264
SusWrite 256
391% 289 MB/s
4K Read 17.8
4K Write 23.8
4K Mixed 18.7
1,512% 20.1 MB/s
DQ Read 19.2
DQ Write 28.9
DQ Mixed 22.3
1,813% 23.5 MB/s
531GB free (System drive), PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 111 119 131 108 205 152 MB/s
71.9% Very good
Read 259
Write 229
Mixed 128
SusWrite 138
242% 189 MB/s
4K Read 2.4
4K Write 1.2
4K Mixed 1.3
94% 1.63 MB/s
604GB free, PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 78 77 78 77 77 77 MB/s
40.7% Average
Read 109
Write 90.9
Mixed 61.8
SusWrite 77.2
110% 84.7 MB/s
4K Read 0.5
4K Write 2.6
4K Mixed 0.9
121% 1.33 MB/s
76GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 41 41 41 42 42 MB/s
18.1% Very poor
Read 54.6
Write 31.3
Mixed 35.4
SusWrite 41.1
52% 40.6 MB/s
4K Read 5
4K Write 0
4K Mixed 4.5
172% 3.17 MB/s
97 MORE »
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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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